Howto:General information for compact flash cards: Difference between revisions
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Old CF cards does not support DMA, the IP6000/IP800 did not need the DMA | Old CF cards does not support DMA, the IP6000/IP800 did not need the DMA | ||
If you use an IP6010 than you need CF Cards | If you use an IP6010 than you need CF Cards with DMA | ||
when you use an IP6010 with old CF Cards, and the card is not working please start an trace than you see: NO DMA mode Supported!! NO Valid CF-Card | when you use an IP6010 with old CF Cards, and the card is not working please start an trace than you see: NO DMA mode Supported!! NO Valid CF-Card | ||
if you see this message in the trace please change the CF card | |||
== Related Articles == | == Related Articles == | ||
Revision as of 16:47, 10 November 2011
Applies To
This information applies to
- IP 6000, V6 SR1
- IP 800, V6 SR1
- IP 302/305, V6 SR1
More Information
- Which size should the card have?
The card should have at least 64 MB, because it uses FAT32. Cards with up to 16GB were tested successfully.
- Is there a formula to calculate the space for one mail box user?
Assuming we have G.711, a voice mail (120 seconds maximum) has 960 kByte, because 8 kByte/s are used and assuming we have G.729, a voice mail has 120 kByte, because 1 kByte/s is used. So it's now on you to estimate the amount of voice mails one of your users will have and how many voice mail users you have.
- Is there a recommended card speed?
No. Also slower cards can be used and there is no advantage to use high speed cards with innovaphone devices.
- Are there recommended manufacturers/cards?
Yes. We recommend to use SanDisk cards, because we made the best experiences with them. But in general, each card should be supported. For SanDisk cards, please use Ultra II or above (Extreme III/IV).
- Is it possible to put MOH on the compact flash card?
Yes, this is possible.
- How about wear leveling on the Compact Flash cards? What are you doing in that regard?
Wear leveling is done by compact flash card hardware. Please keep in mind: the more free space do you have on the card the better wear leveling works. SanDisk cards are known to have very good wear leveling performance.
Known Problems
Older revisions of the ip6000 have problems with certain cf card manufacturers. Please use the recommended Sandisk cards here. Revisions since hardware 300 do not have this issue anymore.
Old CF cards does not support DMA, the IP6000/IP800 did not need the DMA
If you use an IP6010 than you need CF Cards with DMA
when you use an IP6010 with old CF Cards, and the card is not working please start an trace than you see: NO DMA mode Supported!! NO Valid CF-Card
if you see this message in the trace please change the CF card
Related Articles
Installing the voicemail/music on hold on a compact flash card